The SM 4432C is a heavy-duty Self Starter Rocker Assembly (Brush Holder) specifically designed for the Tata Ace family (including the Ace HT, Ace EX, and Ace Zip). Utilizing a high-efficiency 4-brush configuration and a Lucas-style (L.TYPE) design, this assembly is built to handle the constant stop-start cycles of last-mile delivery. The "C" designation represents a commercial-grade upgrade, featuring reinforced components to survive the high-vibration environment of small diesel engines.